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https://www.readbyqxmd.com/read/27919738/long-term-ethanol-self-administration-induces-%C3%AE-fosb-in-male-and-female-adolescent-but-not-in-adult-wistar-rats
#1
Aranza Wille-Bille, Soledad de Olmos, Leonardo Marengo, Florencia Chiner, Ricardo Marcos Pautassi
Early-onset ethanol consumption predicts later development of alcohol use disorders. Age-related differences in reactivity to ethanol's effects may underlie this effect. Adolescent rats are more sensitive and less sensitive than adults to the appetitive and aversive behavioral effects of ethanol, respectively, and more sensitive to the neurotoxic effects of experimenter-administered binge doses of ethanol. However, less is known about age-related differences in the neural consequences of self-administered ethanol...
December 2, 2016: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/27916372/a-multicenter-randomized-controlled-trial-comparing-pancreatic-leaks-after-tissuelink-versus-seamguard-after-distal-pancreatectomy-plats-nct01051856
#2
Christopher R Shubert, Christina R Ferrone, Carlos Fernandez-Del Castillo, Michael L Kendrick, Michael B Farnell, Rory L Smoot, Mark J Truty, Florencia G Que
BACKGROUND: Pancreatic leak is common after distal pancreatectomy. This trial sought to compare TissueLink closure of the pancreatic stump to that of SEAMGUARD. METHODS: A multicenter, prospective, trial of patients undergoing distal pancreatectomy randomized to either TissueLink or SEAMGUARD. RESULTS: Enrollment was closed early due to poor accrual. Overall, 67 patients were enrolled, 35 TissueLink and 32 SEAMGUARD. The two groups differed in American Society of Anesthesiologist class and diagnosis at baseline and were relatively balanced otherwise...
November 2016: Journal of Surgical Research
https://www.readbyqxmd.com/read/27913570/revisiting-the-human-polypeptide-galnac-t1-and-t13-paralogs
#3
María Florencia Festari, Felipe Trajtenberg, Nora Berois, Sergio Pantano, Leslie Revoredo, Yun Kong, Patricia Solari-Saquieres, Yoshiki Narimatsu, Teresa Freire, Sylvie Bay, Carlos Robello, Jean Bénard, Thomas A Gerken, Henrik Clausen, Eduardo Osinaga
Polypeptide GalNAc-transferases (GalNAc-Ts) constitute a family of 20 human glycosyltransferases (comprising 9 subfamilies), which initiate mucin-type O-glycosylation. The O-glycoproteome is thought to be differentially regulated via the different substrate specificities and expression patterns of each GalNAc-T isoforms. Here, we present a comprehensive in vitro analysis of the peptide substrate specificity of GalNAc-T13, showing that it essentially overlaps with the ubiquitous expressed GalNAc-T1 isoform found in the same subfamily as T13...
November 22, 2016: Glycobiology
https://www.readbyqxmd.com/read/27911923/morphology-and-hydraulic-architecture-of-vitis-vinifera-l-cv-syrah-and-torront%C3%A3-s-riojano-plants-are-unaffected-by-variations-in-red-to-far-red-ratio
#4
Carina Verónica González, María Florencia Jofré, Hernán F Vila, Markus Stoffel, Rubén Bottini, Carla Valeria Giordano
Plants have evolved an array of specific photoreceptors to acclimate to the light environment. By sensing light signals, photoreceptors modulate plant morphology, carbon- and water-physiology, crop yield and quality of harvestable organs, among other responses. Many cultural practices and crop management decisions alter light quantity and quality perceived by plants cultivated in the field. Under full sunlight, phytochromes perceive high red to far red ratios (R:FR; 1.1), whereas overhead or lateral low R:FR (below 1...
2016: PloS One
https://www.readbyqxmd.com/read/27905656/-persistent-elevation-of-aspartate-aminotransferase-ast-due-to-the-presence-of-macro-ast-report-of-one-case
#5
Verónica Bustamante, Juan Pablo Arab, Florencia Terc, Helena Poggi, Manuela Goycoolea, Marco Arrese, Teresita Quiroga, Carlos Benítez
We report an asymptomatic 23-year-old woman with an isolated and persistent increase in serum levels of aspartate aminotransferase (AST). An extensive work up including laboratory and image testing revealed no abnormalities thus suggesting the presence of macro-AST. A polyethylene glycol (PEG) precipitation assay was performed and confirmed the presence of macro-AST.
August 2016: Revista Médica de Chile
https://www.readbyqxmd.com/read/27901286/acceptability-of-dative-argument-structure-in-spanish-assessing-semantic-and-usage-based-factors
#6
Florencia Reali
Multiple constraints, including semantic, lexical, and usage-based factors, have been shown to influence dative alternation across different languages. This work explores whether fine-grained statistics and semantic properties of the verb affect the acceptability of dative constructions in Spanish. First, a corpus analysis reveals that verbs of different semantic classes occur naturally in alternative dative constructions, a pattern quite different from English. The fact that dative alternation appears independent of semantic classes challenges traditional semantic-based approaches...
November 30, 2016: Cognitive Science
https://www.readbyqxmd.com/read/27900469/holocene-changes-in-the-trophic-ecology-of-an-apex-marine-predator-in-the-south-atlantic-ocean
#7
Damián G Vales, Luis Cardona, Atilio F Zangrando, Florencia Borella, Fabiana Saporiti, R Natalie P Goodall, Larissa Rosa de Oliveira, Enrique A Crespo
Predators may modify their diets as a result of both anthropogenic and natural environmental changes. Stable isotope ratios of nitrogen and carbon in bone collagen have been used to reconstruct the foraging ecology of South American fur seals (Arctocephalus australis) in the southwestern South Atlantic Ocean since the Middle Holocene, a region inhabited by hunter-gatherers by millennia and modified by two centuries of whaling, sealing and fishing. Results suggest that the isotopic niche of fur seals from Patagonia has not changed over the last two millennia (average for the period: δ(13)C2200-0BP = -13...
November 29, 2016: Oecologia
https://www.readbyqxmd.com/read/27894982/multiple-opportunistic-infections-in-a-woman-with-gata2-mutation
#8
Andrea Vila, Juan I Dapás, Cynthia V Rivero, Florencia Bocanegra, Roberto F Furnari, Amy P Hsu, Steven M Holland
GATA2 deficiency is a genetic disorder caused by inherited or sporadic haploinsufficient mutations in the GATA2 gene. Patients have abnormalities in hematopoiesis, lymphangiogenesis and immunity; encompassing a broad range of clinical syndromes, mainly characterized by monocytopenia, B and NK cell cytopenia, severe or recurrent infections, and a high risk of developing myelodysplastic syndrome (MDS) and acute myeloid leukemia (AML).We report a case of an Argentinean woman, who presented with multiple opportunistic infections as her first manifestation of GATA2 deficiency...
November 25, 2016: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/27889770/usefulness-of-discriminability-and-response-bias-indices-for-the-evaluation-of-recognition-memory-in-mild-cognitive-impairment-and-alzheimer-disease
#9
María Julieta Russo, Gabriela Cohen, Jorge Campos, Maria Eugenia Martin, María Florencia Clarens, Liliana Sabe, Ernesto Barcelo, Ricardo F Allegri
BACKGROUND: Most studies examining episodic memory in Alzheimer disease (AD) have focused on patients' impaired ability to remember information. This approach provides only a partial picture of memory deficits since other factors involved are not considered. OBJECTIVE: To evaluate the recognition memory performance by using a yes/no procedure to examine the effect of discriminability and response bias measures in amnestic mild cognitive impairment (a-MCI), AD dementia, and normal-aging subjects...
November 26, 2016: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/27889766/telencephalic-neuronal-activation-associated-with-spatial-memory-in-the-terrestrial-toad-rhinella-arenarum-participation-of-the-medial-pallium-during-navigation-by-geometry
#10
María Inés Sotelo, M Florencia Daneri, Verner Peter Bingman, Rubén N Muzio
Amphibians are central to discussions of vertebrate evolution because they represent the transition from aquatic to terrestrial life, a transition with profound consequences for the selective pressures shaping brain evolution. Spatial navigation is one class of behavior that has attracted the interest of comparative neurobiologists because of the relevance of the medial pallium/hippocampus, yet, surprisingly, in this regard amphibians have been sparsely investigated. In the current study, we trained toads to locate a water goal relying on the boundary geometry of a test environment (Geometry-Only) or boundary geometry coupled with a prominent, visual feature cue (Geometry-Feature)...
November 26, 2016: Brain, Behavior and Evolution
https://www.readbyqxmd.com/read/27879592/reinnervated-split-muscle-technique-for-creating-additional-myoelectric-sites-in-an-animal-model
#11
Maria Florencia Deslivia, Hyun-Joo Lee, Rizki Fajar Zulkarnain, Bin Zhu, Arnold Adikrishna, In-Ho Jeon, Keehoon Kim
BACKGROUND: This study proposes a novel reinnervated split-muscle operation to create additional myoelectric sites as sources of command signals of myoelectric prostheses for enhanced dexterous hand-to-wrist motions. The aim of this study was to investigate the postprocedure electromyographic properties of the muscles as distinct myoelectric sites in a rat model. METHODS: The reinnervated split-muscle group (n = 6) had the gastrocnemius muscle separated along its longitudinal axis and nerves transferred to each new muscle (peroneal nerve to lateral muscle head and tibial to medial one); the non-split-muscle group (n = 6) only had nerve transfers with its muscle intact...
December 2016: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27871750/biogeochemical-and-hydrological-drivers-of-the-dynamics-of-vibrio-species-in-two-patagonian-estuaries
#12
Germán A Kopprio, M Eugenia Streitenberger, Kentaro Okuno, Mónica Baldini, Florencia Biancalana, Anna Fricke, Ana Martínez, Sucharit B Neogi, Boris P Koch, Shinji Yamasaki, Rubén J Lara
The ecology of the most relevant Vibrio species for human health and their relation to water quality and biogeochemistry were studied in two estuaries in Argentinian Patagonia. Vibrio cholerae and Vibrio parahaemolyticus were reported in >29% of cases at the Río Colorado and Río Negro estuaries. Neither the pandemic serogroups of Vibrio cholerae O1, Vibrio cholerae O139 nor the cholera toxin gene were detected in this study. However, several strains of V. cholerae (not O1 or O139) are able to cause human disease or acquire pathogenic genes by horizontal transfer...
November 18, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27866333/strain-engineering-and-process-optimization-for-enhancing-the-production-of-a-thermostable-steryl-glucosidase-in-escherichia-coli
#13
Florencia Eberhardt, Andres Aguirre, Hugo G Menzella, Salvador Peiru
Biodiesels produced from transesterification of vegetable oils have a major problem in quality due to the presence of precipitates, which are mostly composed of steryl glucosides (SGs). We have recently described an enzymatic method for the efficient removal of SGs from biodiesel, based on the activity of a thermostable β-glycosidase from Thermococcus litoralis. In the present work, we describe the development of an Escherichia coli-based expression system and a high cell density fermentation process. Strain and process engineering include the assessment of different promoters to drive the expression of a codon-optimized gene, the co-expression of molecular chaperones and the development of a high cell density fermentation process...
November 19, 2016: Journal of Industrial Microbiology & Biotechnology
https://www.readbyqxmd.com/read/27852699/analysis-of-ror1-protein-expression-in-human-cancer-and-normal-tissues
#14
Ashwini Balakrishnan, Tracy Goodpaster, Julie Randolph-Habecker, Benjamin G Hoffstrom, Florencia G Jalikis, Lisa K Koch, Carolina Berger, Paula L Kosasih, Anusha Rajan, Daniel Sommermeyer, Peggy Porter, Stanley R Riddell
PURPOSE: This study examines cell-surface ROR1 expression in human tumors and normal tissues. ROR1 is considered a promising target for cancer therapy due to putative tumor-specific expression and multiple groups are developing antibodies and/or chimeric antigen receptor-modified T cells to target ROR1. On-target, off-tumor toxicity is a challenge for most non-mutated tumor antigens, however prior studies suggest that ROR1 is absent on most normal tissues. EXPERIMENTAL DESIGN: Our studies show that published antibodies lack sensitivity to detect endogenous levels of cell-surface ROR1 by immunohistochemistry (IHC) in FFPE tissues...
November 16, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/27844397/compensation-or-reinforcement-the-stratification-of-parental-responses-to-children-s-early-ability
#15
Michael Grätz, Florencia Torche
Theory and empirical evidence suggest that parents allocate their investments unequally among their children, thus inducing within-family inequality. We investigate whether parents reinforce or compensate for initial ability differences between their children as well as whether these parental responses vary by family socioeconomic status (SES). Using the Early Childhood Longitudinal Study, Birth Cohort (ECLS-B) and a twin fixed-effects approach to address unobserved heterogeneity, we find that parental responses to early ability differences between their children do vary by family SES...
December 2016: Demography
https://www.readbyqxmd.com/read/27833209/influence-of-sex-steroid-hormones-on-the-adolescent-brain-and-behavior-an-update
#16
Pilar Vigil, Juan Pablo Del Río, BÁrbara Carrera, Florencia C ArÁnguiz, Hernán Rioseco, Manuel E Cortés
This review explains the main effects exerted by sex steroids and other hormones on the adolescent brain. During the transition from puberty to adolescence, these hormones participate in the organizational phenomena that structurally shape some brain circuits. In adulthood, this will propitiate some specific behavior as responses to the hormones now activating those neural circuits. Adolescence is, then, a critical "organizational window" for the brain to develop adequately, since steroid hormones perform important functions at this stage...
August 2016: Linacre Quarterly
https://www.readbyqxmd.com/read/27820794/epidemiological-differences-between-localised-and-non-localised-low-back-pain
#17
David Coggon, Georgia Ntani, Karen Walker-Bone, Keith T Palmer, Vanda E Felli, Raul Harari, Lope H Barrero, Sarah A Felknor, David Gimeno, Anna Cattrell, Sergio Vargas-Prada, Matteo Bonzini, Eleni Solidaki, Eda Merisalu, Rima R Habib, Farideh Sadeghian, M Masood Kadir, Sudath Sp Warnakulasuriya, Ko Matsudaira, Busisiwe Nyantumbu, Malcolm R Sim, Helen Harcombe, Ken Cox, Leila M M Sarquis, Maria H Marziale, Florencia Harari, Rocio Freire, Natalia Harari, Magda V Monroy, Leonardo A Quintana, Marianela Rojas, E Clare Harris, Consol Serra, J Miguel Martinez, George Delclos, Fernando G Benavides, Michele Carugno, Marco M Ferrario, Angela C Pesatori, Leda Chatzi, Panos Bitsios, Manolis Kogevinas, Kristel Oha, Tiina Freimann, Ali Sadeghian, Roshini J Peiris-John, Nalini Sathiakumar, A Rajitha Wickremasinghe, Noriko Yoshimura, Helen L Kelsall, Victor C W Hoe, Donna M Urquhart, Sarah Derrett, David McBride, Peter Herbison, Andrew Gray, Eduardo J Salazar Vega
STUDY DESIGN: Cross-sectional survey with longitudinal follow-up OBJECTIVES.: To test the hypothesis that pain which is localised to the low back differs epidemiologically from that which occurs simultaneously or close in time to pain at other anatomical sites SUMMARY OF BACKGROUND DATA.: Low back pain (LBP) often occurs in combination with other regional pain, with which it shares similar psychological and psychosocial risk factors. However, few previous epidemiological studies of LBP have distinguished pain that is confined to the low back from that which occurs as part of a wider distribution of pain...
November 4, 2016: Spine
https://www.readbyqxmd.com/read/27812662/absence-of-asymptomatic-cases-of-malaria-in-a-historically-endemic-indigenous-locality-of-the-department-of-caaguaz%C3%A3%C2%BA-paraguay-moving-toward-elimination
#18
Eugenia Duarte de Barrios, Graciela Russomando, Florencia Del Puerto
INTRODUCTION: Paraguay was among the 16 countries that reported zero indigenous malaria cases in 2014. METHODS: A cross-sectional observational descriptive study was performed in 100 adults from Santa Teresa, Paraguay. Parasite detection was carried out using seminested multiplex polymerase chain reaction (PCR) and microscopy. RESULTS: Among the participants, 44% were female and 56% were male, and 89% had a malaria history. No parasites were detected with either of the methods...
September 2016: Revista da Sociedade Brasileira de Medicina Tropical
https://www.readbyqxmd.com/read/27811842/inhibition-of-mhc-i-by-brucella-abortus-is-an-early-event-during-infection-and-involves-egfr-pathway
#19
Lis N Velásquez, M Ayelén Milillo, M Victoria Delpino, Aldana Trotta, M Florencia Mercogliano, Roberto G Pozner, Roxana Schillaci, Patricia V Elizalde, Guillermo H Giambartolomei, Paula Barrionuevo
Brucella abortus is able to persist inside the host despite the development of potent CD8(+) T cell responses. We have recently reported the ability of B. abortus to inhibit the IFN-γ-induced MHC-I cell surface expression on human monocytes. This phenomenon was due to the B. abortus-mediated retention of MHC-I molecules within the Golgi apparatus and was dependent on bacterial viability. However, the implications of bacterial virulence or replicative capacity and the signaling pathways remained unknown. Here, we demonstrated that the B...
November 4, 2016: Immunology and Cell Biology
https://www.readbyqxmd.com/read/27810263/multiplex-pcr-designed-to-differentiate-species-within-the-candida-glabrata-complex
#20
Catiana Dudiuk, Soraya E Morales-López, Virginia Podesta, Daiana Macedo, Florencia Leonardelli, Roxana G Vitale, María E Tosello, Matías S Cabeza, Marisa Biasoli, Soledad Gamarra, Guillermo Garcia-Effron
BACKGROUND: No phenotypic methods are available to unequivocally differentiate species within the Candida glabrata complex. AIMS: To develop a new multiplex PCR method to differentiate between the three species of the C. glabrata species complex, as well as using it to study a C. glabrata collection to discover strains of the newly described species. METHODS: The method was developed based on the Internal Transcribed Spacer (ITS) sequence differences between the species...
October 31, 2016: Revista Iberoamericana de Micología
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